Sorry Fergie, the author of that has no idea what he is talking about. He seems to have no idea at all about Localrank, which is a technology Google owns but definitely is not applying at this time. Honestly, anyone who thinks localrank is being applied can’t even have looked at actual search results. There are many cases where sites that are authoratative in general, like a newspaper, are ranking well simply because they have an article mentioning the term. This is totally opposite Localrank, which to oversimplify it is a concept that rewards sites within a niche that have links from authoratative sites on that topic, baccarat sites linking to baccarat sites. That is not there at all these days, but if that idea was added to what is there now, it would make some really great results. Authoratativeness matters now, and hopefully the next Google tweak will make add localrank to the mix.
Also that filter nonsense was discredited in early December.